CN101583009A - Video terminal and method thereof for realizing interface content sharing - Google Patents
Video terminal and method thereof for realizing interface content sharing Download PDFInfo
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Abstract
The invention provides a video terminal and a method thereof for realizing interface content sharing. In video communications, through the switching requirements of users and a new interface content handling unit, real-time sharing of local interface content in video communications is realized by data transmission mode of video communication, thereby improving the convenience for use of users, satisfying the new requirements of users on the video terminal, improving the satisfaction of users of the video terminal and boosting the popularization and application of the video terminal. Meanwhile, the application of video telephones is greatly expanded and the limit that two persons in communications can only see the image in the camera of the other person is broken through.
Description
Technical field
The present invention relates to the 3G mobile technology, refer to a kind of video terminal especially and in video calling, realize the method that interface content is shared.
Background technology
Along with developing rapidly of mobile multi-media service, and 3G progressively commercialization at home, visual telephone service becomes the significant business of 3G, develops rapidly and should use in the personal communication field.Visual telephone service is a kind of video communication service of point-to-point, and it can utilize the image and the voice signal of the two-way real-time Transmission both call sides of telephone network.The effect of face-to-face exchange can be received in the video terminal, realizes when people converse the dream of " not only heard its sound, but also see its people ".
Fig. 1 is the composition structural representation of existing video terminal, as shown in Figure 1, the video terminal comprises that view finder (Sensor) is as camera, microphone (MIC), LCD display, loud speaker (Speaker), coding module, decoder module, video telephone protocol stack and modulator-demodulator (modem).Represent with both call sides among Fig. 1, therefore only shown the functional module of transmission/reception respectively.
At the transmitting terminal of video calling, at first, obtain video data, obtain voice data and carry out mould/number (A/D) conversion by MIC by Sensor; Then, coding module is encoded to video data and voice data respectively, obtains video code flow and audio code stream; Then video telephone protocol stack (H324) is handled, and the video code flow behind the coding and audio code stream is carried out multiplexing, is suitable for communication link data packets for transmission (PDU) with formation; At last, send to the receiving terminal of video calling through modulator-demodulator.
At the receiving terminal of video calling, at first,, then, to be handled through video telephone protocol stack (H324) by the PDU of modulator-demodulator reception from transmitting terminal, decomposition obtains video code flow and audio code stream; Then, decoder module is decoded to video code flow and audio code stream respectively, obtains video data and voice data; At last, demonstrate video image, play the audio signal of having carried out D/A (D/A) conversion by Speaker by LCD display.
At present, in the application of video terminal, the user has proposed new demand, wishes that the video terminal can send the content that this machine current interface is showed in real time.Such as the business people in video call process, may need prospectus and the other side of storing in this machine are carried out real-time, detailed elaboration, existing video calling technology only can be supported this machine set forth the voice of prospectus and send to the opposite end, but can not intuitively the prospectus of having stored in this machine be presented to the opposite end in real time.Present video terminal can not be satisfied new demand, has reduced video terminal user's satisfaction, even has hindered the popularization and application of video terminal.
Summary of the invention
In view of this, main purpose of the present invention is to provide a kind of video terminal, can send the content that this machine current interface is showed in real time, satisfies the new demand to the video terminal, improves video terminal user's satisfaction, promotes the popularization and application of video terminal.
Another object of the present invention is to provide a kind of video terminal to realize the method that interface content is shared, can send the content that this machine current interface is showed in real time, satisfy new demand, improve video terminal user's satisfaction, promote the popularization and application of video terminal the video terminal.
For achieving the above object, technical scheme of the present invention is achieved in that
A kind of video terminal comprises LCD display, view finder, processing unit, also comprises switch unit and interface content processing unit, wherein,
Switch unit is used to receive the switching command from the outside, selects to obtain video data by view finder, still obtains data cached data of gathering transmission by LCD data display buffer;
The interface content processing unit comprises format converting module, is used for handling, be converted to the buffer area data that meet the requirement of coding pattern of the input from the buffer data of LCD data display buffer and exporting to processing unit;
Processing unit is used for that the buffer area data are handled the back and sends.
Also comprise microphone MIC and loud speaker;
Described processing unit comprises coding module, video telephone protocol stack and modulator-demodulator; When described switch unit selects to obtain data cached data of gathering transmission by LCD data display buffer,
Coding module is used for the buffer area data, and encodes from the voice data through the A/D conversion of MIC, obtains buffer memory code stream and audio code stream, and exports to the video telephone protocol stack;
Described video telephone protocol stack is used for buffer memory code stream and audio code stream are handled, and carries out multiplexingly to buffer memory code stream behind the coding and audio code stream, is suitable for communication link data packets for transmission PDU with formation;
Modulator-demodulator is used to send PDU.
Also comprise microphone MIC and loud speaker;
Described processing unit comprises coding module, video telephone protocol stack and modulator-demodulator; When described switch unit is selected to obtain video data and gather the data of transmission by view finder,
Described coding module is used for the video data from view finder, and encodes from the voice data through the A/D conversion of MIC, obtains video code flow and audio code stream, and exports to the video telephone protocol stack;
Described video telephone protocol stack is used for the video code flow and the audio code stream that receive are handled, and the buffer memory code stream behind the coding and audio code stream is carried out multiplexing, is suitable for the PDU of communication link transmission with formation;
Modulator-demodulator is used to send PDU.
Described interface content processing unit also comprises the resolution adjustment module;
Described resolution adjustment module is used for the buffer area data after the format conversion are carried out resolution adjustment, to meet the resolution of video terminal.
Described interface content processing unit also comprises the time delay adjusting module;
Described time delay adjusting module is used for the buffer area data through resolution adjustment are carried out the time delay adjustment, and itself and voice data are kept synchronously.
The method that interface content is shared is realized in a kind of video terminal, and this method comprises:
Enter video calling, judge whether to exist the switching demand,, the data cached back of handling that obtains from LCD data display buffer is sent if exist;
Otherwise, continue video calling until end.
If there is described handoff request, this method also comprises: shielding video data;
Described shielding video data is: on the LCD display of video terminal video image is shielded at local terminal in minimized mode.
Described data cached processing is comprised:
With data cached format conversion is the pattern of the input that meets the coding requirement of video terminal, and encodes and obtain the buffer memory code stream, carries out multiplexing with audio code stream again.
Described data cached processing is also comprised: carry out resolution adjustment.
Described data cached processing is also comprised: the time delay adjustment.
The technical scheme that provides from the invention described above as can be seen, in video calling, switching by the user requires and newly-increased interface content processing unit, data transfer mode by video calling has realized the Real-Time Sharing of this machine interface content in the video call, increased the convenience that the user uses, but satisfied the new demand of user, improved video terminal user's satisfaction, promoted the popularization and application of video terminal the apparent terminal.Simultaneously, expand the purposes of video telephone greatly, broken through the restriction that both call sides can only be seen the image in the other side's camera.
Description of drawings
Fig. 1 is the composition structural representation of existing video terminal;
Fig. 2 is the composition structural representation of video terminal of the present invention;
Fig. 3 shares the flow chart of the method for interface content in video call for video terminal of the present invention;
Fig. 4 shares the flow chart of the embodiment of interface content in video call for the present invention.
Embodiment
Fig. 2 is the composition structural representation of video terminal of the present invention, as shown in Figure 2, compare with the composition of existing video terminal, video terminal of the present invention is except comprising LCD display, coding module, decoder module, video telephone protocol stack and modulator-demodulator, also comprise switch unit and interface content processing unit, wherein
Switch unit is used to receive the switching command from the outside, selects to obtain video data by view finder, still obtains data cached data of gathering transmission by LCD data display buffer.
The interface content processing unit comprises format converting module, is used for handling, be converted to the buffer area data that the pattern of the input that meets coding module requires from the buffer data of LCD data display buffer and exporting to processing unit;
Processing unit is used for that the buffer area data are handled the back and sends.
Described processing unit comprises coding module, video telephone protocol stack and modulator-demodulator, wherein,
Coding module, being used for the buffer area data are encoded obtains the buffer memory code stream, and exports to the video telephone protocol stack;
Described video telephone protocol stack is used for obtaining packet PDU after the processing of buffer memory code stream; Obtain the buffer memory code stream after the PDU that receives decomposed, and export to decoder module;
Decoder module, what be used for that demodulation obtains to the buffer memory code stream is data cached, exports to LCD display and shows;
Modulator-demodulator is used for sending or receiving packet PDU.
The video terminal also comprises existing MIC and loud speaker except comprising existing LCD display, coding module, decoder module, video telephone protocol stack and modulator-demodulator.Specifically:
Coding module is used for video data or buffer area data from view finder, and encodes from the voice data through the A/D conversion of MIC, obtains video code flow or buffer memory code stream, and audio code stream, and exports to the video telephone protocol stack.
The video telephone protocol stack is used for the video code flow that receives or buffer memory code stream and audio code stream are handled, and the video code flow behind the coding and audio code stream is carried out multiplexing, is suitable for the PDU of communication link transmission with formation; Also be used for the PDU from modulator-demodulator is handled, decomposition obtains video code flow or buffer memory code stream, and audio code stream, and exports to decoder module.
Decoder module is used for decoding to receiving video code flow or buffer memory code stream and audio code stream, obtain video data or data cached, and voice data, and video data or the data cached LCD display of exporting to shown, voice data is exported to loudspeaker plays.
Modulator-demodulator is used for sending or receiving PDU.
The interface content processing unit also comprises the resolution adjustment module, is used for the buffer area data after the format conversion are carried out resolution adjustment, to meet the resolution of video terminal.
The interface content processing unit also comprises the time delay adjusting module, is used for the buffer area data through resolution adjustment are carried out the time delay adjustment, and itself and voice data are kept synchronously.
Need to prove not have processing sequence successively between the format converting module in the interface content processing unit, resolution adjustment module and the time delay adjusting module.
Suppose format converting module, resolution adjustment module and time delay adjusting module that the interface content processing unit comprises, utilize video terminal of the present invention to realize that the operation principle of shared interface content is as follows:
The user at first sets up video calling, when existence in video call process is shared needing of this machine current interface content with the other side, the user is by carrying out handover operation, such as pressing the handoff functionality key, be that handover module receives the switching command from the outside, video image on the LCD display of video terminal, will occur and shield at local terminal, and the visual telephone video Data Source will be switched to (being current terminal interface content displayed) the LCD of mobile phone data display buffer district from view finder in minimized mode.At this moment, the user can be as the normal running mobile phone, enters any Application Program Interface of sharing with the other side wanted.Next, data cached in the buffer area carries out respectively by the interface content processing unit after the adjusting of conversion, resolution of data format and time delay adjust, and the data transfer mode by video calling directly sends to coding module and encodes.Buffer memory code stream behind the coding after obtaining through the audio frequency and video host-host protocol H324 of video telephone, utilize the buffer memory code stream behind synthetic this coding of H223 agreement and change by the A/D that MIC obtains after voice data, be multiplexed into a series of complete PDU data.At last, the communication link by current foundation sends to the opposite end.
At this moment, the reception of audio, video data is carried out in the mode of video calling in the opposite end, and after Data Receiving, the other side promptly can see the interface content that local terminal is shared with it in real time, if the interface content of local terminal changes, the other side can see in real time.
Further, when if there is the demand of the audio, video data of preserving this real-time exhibition in the user, can carry out the recorded and stored of real-time audio and video data by the mode that the existing function selecting of video terminal is recorded a video, the mode that also can select to take pictures is carried out the intercepting of picture.
By video terminal of the present invention, by newly-increased interface content processing unit, expanded the purposes of video telephone greatly, break through both call sides and can only see the restriction of image in the other side's camera, data transfer mode by video calling has realized the Real-Time Sharing of this machine interface content in the video call, has increased the convenience that the user uses, but has satisfied the new demand of user to the apparent terminal, improve video terminal user's satisfaction, promoted the popularization and application of video terminal.
Fig. 3 is the flow chart of video terminal of the present invention method of shared interface content in video call, as shown in Figure 3, may further comprise the steps:
Step 300: enter video calling.Specific implementation belongs to prior art, repeats no more here.
Step 301: whether have the switching demand,, enter step 302, otherwise return step 300 if exist.The user can pass through handover operation, asks to switch such as pressing the handoff functionality key, shows the shared video terminal of needs interface content.Specific implementation belongs to those skilled in the art's conventional techniques means, repeats no more here.
Step 302: the data cached back of handling that obtains from LCD data display buffer is sent.
In this step, also further comprise shielding video data, on the LCD display of video terminal, video image is shielded at local terminal in minimized mode exactly.Specific implementation belongs to those skilled in the art's conventional techniques means, repeats no more here.Certainly, the video terminal page or leaf can directly be closed view finder.
To be treated to data cached format conversion be the pattern of the input that meets the coding requirement of video terminal to data cached, and encode and obtain the buffer memory code stream, carries out multiplexing with audio code stream again.
Further, data cached processing also comprised carry out resolution adjustment, to meet the resolution of video terminal.
Further, data cached processing is also comprised the time delay adjustment, itself and voice data are kept synchronously.
Need to prove, data cached processing can not had processing sequence successively, and the specific implementation of these processing belongs to those skilled in the art's conventional techniques means, repeats no more here.
The inventive method also comprises: the audio-video document that the information that the opposite end can select the video recording mode that local terminal is received promptly shows (as big data quantity information) carries out recording and storing, also can intercept the Frame that the information of receiving is current displaying (as small data quantity information such as picture, business cards) by the mode of taking pictures
What the inventive method was emphasized is, in video calling, switching requirement according to the user, data transfer mode by video calling has realized the Real-Time Sharing of this machine interface content in the video call, increased the convenience that the user uses, but satisfied the new demand of user, improved video terminal user's satisfaction, promoted the popularization and application of video terminal the apparent terminal.Simultaneously, expand the purposes of video telephone greatly, broken through the restriction that both call sides can only be seen the image in the other side's camera.
Describe the present invention below in conjunction with embodiment.
Fig. 4 supposes data cached processing is comprised format conversion, resolution adjustment and time delay adjustment for the flow chart of the present invention embodiment of shared interface content in video call, as shown in Figure 4, comprising:
Step 400～step 401: local terminal is initiated video calling, sets up the video calling link with the opposite end, supposes if local terminal has the demand of real-time this machine of transmission interface content, such as the commercial prospectus in this machine of being stored in etc., enters step 402 after pressing the handoff functionality key.The handoff functionality key can be the soft key menu option of handset displays.
Step 402: the video calling that local terminal is current minimizes, and discharges view finder, then the video coding territory is switched to the LCD buffer area by the buffer memory of finding a view and promptly recovers the LCD interface information.
Step 403: adjusting and the time delay adjustment of the primary data information (pdi) that obtains being carried out conversion, the resolution of form from the LCD buffer area are handled, so that the data cached encoding process of obtaining that meets in the video terminal is to the requirement of input data.
Step 404～step 405: the video terminal is carried out encoding process to voice data simultaneously and is obtained audio code stream data cached coding the after handling.Buffer memory code stream behind the coding and audio code stream are handled through video telephone protocol stack (H324), and the video data behind the coding and voice data are carried out multiplexing, are suitable for the PDU of communication link transmission with formation.
Step 406: delay when passing through of short duration video switch, local terminal is that the information (PDU after multiplexing) that LCD shows sends to the opposite end with the mode of the video calling interface content that local terminal is current; The opposite end presents the current interface content of local terminal by LCD display.
Like this, the video calling both sides just can discuss in real time at same interface display.Further, the audio-video document (as big data quantity information) that the opposite end can select the video recording mode that local terminal is showed carries out recording and storing, also can intercept the Frame (as small data quantity information such as picture, business cards) of current displaying by the mode of taking pictures.
Step 407: after aforesaid operations was finished, the mode that the user can select to switch back video calling was proceeded conversation, also can directly select on-hook to finish current talking.If the user is not switched demand in video calling, then carry out and finish video calling according to existing mode.
The above is preferred embodiment of the present invention only, is not to be used to limit protection scope of the present invention, all any modifications of being done within the spirit and principles in the present invention, is equal to and replaces and improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1, a kind of video terminal comprises LCD display, view finder, processing unit, it is characterized in that, also comprises switch unit and interface content processing unit, wherein,
Switch unit is used to receive the switching command from the outside, selects to obtain video data by view finder, still obtains data cached data of gathering transmission by LCD data display buffer;
The interface content processing unit comprises format converting module, is used for handling, be converted to the buffer area data that meet the requirement of coding pattern of the input from the buffer data of LCD data display buffer and exporting to processing unit;
Processing unit is used for that the buffer area data are handled the back and sends.
2, video terminal according to claim 1 is characterized in that, also comprises microphone MIC and loud speaker;
Described processing unit comprises coding module, video telephone protocol stack and modulator-demodulator; When described switch unit selects to obtain data cached data of gathering transmission by LCD data display buffer,
Coding module is used for the buffer area data, and encodes from the voice data through the A/D conversion of MIC, obtains buffer memory code stream and audio code stream, and exports to the video telephone protocol stack;
Described video telephone protocol stack is used for buffer memory code stream and audio code stream are handled, and carries out multiplexingly to buffer memory code stream behind the coding and audio code stream, is suitable for communication link data packets for transmission PDU with formation;
Modulator-demodulator is used to send PDU.
3, video terminal according to claim 1 is characterized in that, also comprises microphone MIC and loud speaker;
Described processing unit comprises coding module, video telephone protocol stack and modulator-demodulator; When described switch unit is selected to obtain video data and gather the data of transmission by view finder,
Described coding module is used for the video data from view finder, and encodes from the voice data through the A/D conversion of MIC, obtains video code flow and audio code stream, and exports to the video telephone protocol stack;
Described video telephone protocol stack is used for the video code flow and the audio code stream that receive are handled, and the buffer memory code stream behind the coding and audio code stream is carried out multiplexing, is suitable for the PDU of communication link transmission with formation;
Modulator-demodulator is used to send PDU.
4, video terminal according to claim 1 and 2 is characterized in that, described interface content processing unit also comprises the resolution adjustment module;
Described resolution adjustment module is used for the buffer area data after the format conversion are carried out resolution adjustment, to meet the resolution of video terminal.
5, video terminal according to claim 4 is characterized in that, described interface content processing unit also comprises the time delay adjusting module;
Described time delay adjusting module is used for the buffer area data through resolution adjustment are carried out the time delay adjustment, and itself and voice data are kept synchronously.
6, the method that interface content is shared is realized in a kind of video terminal, it is characterized in that this method comprises;
Enter video calling, judge whether to exist the switching demand,, the data cached back of handling that obtains from LCD data display buffer is sent if exist;
Otherwise, continue video calling until end.
7, method according to claim 6 is characterized in that, if there is described handoff request, this method also comprises: shielding video data;
Described shielding video data is: on the LCD display of video terminal video image is shielded at local terminal in minimized mode.
8, method according to claim 6 is characterized in that, described data cached processing is comprised:
With data cached format conversion is the pattern of the input that meets the coding requirement of video terminal, and encodes and obtain the buffer memory code stream, carries out multiplexing with audio code stream again.
9, method according to claim 8 is characterized in that, described data cached processing is also comprised: carry out resolution adjustment.
10, according to Claim 8 or 9 described methods, it is characterized in that, described data cached processing is also comprised: the time delay adjustment.
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| CN104918127B (en) * | 2015-06-01 | 2018-06-01 | 联想(北京)有限公司 | A kind of video file sharing method, terminal device and video file shared system |
| CN105933639A (en) * | 2016-05-31 | 2016-09-07 | 乐视控股（北京）有限公司 | Video call demonstration method and device |
| CN106954099A (en) * | 2017-03-31 | 2017-07-14 | 青岛海信移动通信技术股份有限公司 | First terminal shows the method and system of the screen interface of second terminal |
| CN112492363A (en) * | 2020-11-26 | 2021-03-12 | 深圳创维－Rgb电子有限公司 | Television content sharing method, smart television, system and readable storage medium |
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